I setup a postfix server under ubuntu and I tested it out and worked fine, then I sent a bunch of smessages through it and now I can't get it to send messages outside of my domain. All of the messages are just stuck in the deferred queue This is a sample output from mailq 77D20402C1B 4506 Tue Jul 27 15:52:51 [email protected] (delivery temporarily suspended: connect to mx3.hotmail.com[65.54.188.126]:25: Connection refused) [email protected] cat hosts 127.0.0.1 localhost 127.0.1.1 mail3.mydomain.com mail3 192.168.5.153 mail3.mydomain.com mail3 maillist.mydomain.com # The following lines are desirable for IPv6 capable hosts ::1 localhost ip6-localhost ip6-loopback fe00::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6-allrouters cat main.cf # See /usr/share/postfix/main.cf.dist for a commented, more complete version # Debian specific: Specifying a file name will cause the first # line of that file to be used as the name. The Debian default # is /etc/mailname. #myorigin = /etc/mailname smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu) biff = no # appending .domain is the MUA's job. append_dot_mydomain = no # Uncomment the next line to generate "delayed mail" warnings #delay_warning_time = 4h readme_directory = no # TLS parameters smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key smtpd_use_tls=yes smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache smtpd_client_connection_count_limit = 0 local_destination_concurrency_limit = 1000 default_destination_concurrency_limit = 1000 # maximal_queue_lifetime = 1 # See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for # information on enabling SSL in the smtp client. myhostname = mail3.mydomain.com alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases myorigin = /etc/mailname mydestination = maillist.mydomain.com, mail3.mydomain.com, localhost.mydomain.com, localhost, 127.0.0.1 relayhost = mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 192.168.5.0/24 192.168.15.0/24 mailbox_command = procmail -a "$EXTENSION" mailbox_size_limit = 0 recipient_delimiter = + inet_interfaces = all snip from mail.log Jul 27 15:52:27 mail3 postfix/cleanup[12345]: 7362040112D: message-id=<> Jul 27 15:52:27 mail3 postfix/smtp[12350]: connect to mx1.hotmail.com[65.55.37.88]:25: Connection refused Jul 27 15:52:27 mail3 postfix/smtp[12350]: connect to mx4.hotmail.com[65.55.92.152]:25: Connection refused Jul 27 15:52:27 mail3 postfix/smtp[12350]: connect to mx2.hotmail.com[65.55.37.72]:25: Connection refused Jul 27 15:52:27 mail3 postfix/smtp[12350]: 717D140112C: to=<[email protected]>, relay=none, delay=0.01, delays=0.01/0/0/0, dsn=4.4.1, status=deferred (connect to mx2.hotmail.com[65.55.37.72]:25: Connection refused) Any Ideas?
Check if your ISP allows you to use port 25 on it's network. A lot of ISP only allow traffic on port 25 through theire own SMTP servers.
lol, i wanted to put a note about some firewalling in it as well, but i figured you had that covered ;-)
Like seriously, I mean you tell them setup a NAT from here to here with port 25 open and they come up with a completly different internal IP address then what you told them. I just expected it to work.
